Stabilise runtime predicates (#1578)

* Stabilise runtime predicates

These are unlikely to undergo much changes (and if they do they are completely separated).
This should be an easy feature cleanup in runtime,
and one less need for unstable-runtime for common setups (i use this all the time).

Signed-off-by: clux <sszynrae@gmail.com>

* clippy

Signed-off-by: clux <sszynrae@gmail.com>

* remove stray reference to unstable in docs for the entrypoint

Signed-off-by: clux <sszynrae@gmail.com>

---------

Signed-off-by: clux <sszynrae@gmail.com>
Signed-off-by: Eirik A <sszynrae@gmail.com>

Author: clux

kube-runtime/Cargo.toml

@@ -12,9 +12,8 @@ keywords = ["kubernetes", "runtime", "reflector", "watcher", "controller"]
 categories = ["web-programming::http-client", "caching", "network-programming"]
 
 [features]
-unstable-runtime = ["unstable-runtime-subscribe", "unstable-runtime-predicates", "unstable-runtime-stream-control", "unstable-runtime-reconcile-on"]
+unstable-runtime = ["unstable-runtime-subscribe", "unstable-runtime-stream-control", "unstable-runtime-reconcile-on"]
 unstable-runtime-subscribe = []
-unstable-runtime-predicates = []
 unstable-runtime-stream-control = []
 unstable-runtime-reconcile-on = []
 

kube-runtime/src/lib.rs

@@ -37,6 +37,5 @@ pub use scheduler::scheduler;
 pub use utils::WatchStreamExt;
 pub use watcher::{metadata_watcher, watcher};
 
-#[cfg(feature = "unstable-runtime-predicates")]
 pub use utils::{predicates, Predicate};
 pub use wait::conditions;

kube-runtime/src/utils/mod.rs

@@ -4,15 +4,14 @@ mod backoff_reset_timer;
 pub(crate) mod delayed_init;
 mod event_decode;
 mod event_modify;
-#[cfg(feature = "unstable-runtime-predicates")] mod predicate;
+mod predicate;
 mod reflect;
 mod stream_backoff;
 mod watch_ext;
 
 pub use backoff_reset_timer::ResetTimerBackoff;
 pub use event_decode::EventDecode;
 pub use event_modify::EventModify;
-#[cfg(feature = "unstable-runtime-predicates")]
 pub use predicate::{predicates, Predicate, PredicateFilter};
 pub use reflect::Reflect;
 pub use stream_backoff::StreamBackoff;

kube-runtime/src/utils/watch_ext.rs

@@ -1,7 +1,10 @@
-#[cfg(feature = "unstable-runtime-predicates")]
-use crate::utils::predicate::{Predicate, PredicateFilter};
 use crate::{
-    utils::{event_decode::EventDecode, event_modify::EventModify, stream_backoff::StreamBackoff},
+    utils::{
+        event_decode::EventDecode,
+        event_modify::EventModify,
+        predicate::{Predicate, PredicateFilter},
+        stream_backoff::StreamBackoff,
+    },
     watcher,
 };
 use kube_client::Resource;
@@ -94,8 +97,6 @@ pub trait WatchStreamExt: Stream {
     /// Common use case for this is to avoid repeat events for status updates
     /// by filtering on [`predicates::generation`](crate::predicates::generation).
     ///
-    /// **NB**: This is constructor requires an [`unstable`](https://github.com/kube-rs/kube/blob/main/kube-runtime/Cargo.toml#L17-L21) feature.
-    ///
     /// ## Usage
     /// ```no_run
     /// # use std::pin::pin;
@@ -116,7 +117,6 @@ pub trait WatchStreamExt: Stream {
     /// # Ok(())
     /// # }
     /// ```
-    #[cfg(feature = "unstable-runtime-predicates")]
     fn predicate_filter<K, P>(self, predicate: P) -> PredicateFilter<Self, K, P>
     where
         Self: Stream<Item = Result<K, watcher::Error>> + Sized,
@@ -272,7 +272,6 @@ pub trait WatchStreamExt: Stream {
 impl<St: ?Sized> WatchStreamExt for St where St: Stream {}
 
 // Compile tests
-#[cfg(feature = "unstable-runtime-predicates")]
 #[cfg(test)]
 pub(crate) mod tests {
     use super::watcher;